Fluke Networks 22800009 TS22 Telephone Test Set with Angled Bed-of-Nails Clips Detects dial tone and polarity, places and receives calls, and has a one-way amplified speaker for hands-free listening during testing of telephone lines DropSafe reliability passes 20-foot drop test RainSafe protection in severe weather conditions Stores nine 18-digit numbers in repertory dialer (speed dialing) Polarity indication/Tone and Pulse operation